12089775 has 24 divisors (see below), whose sum is σ = 20089984. Its totient is φ = 6415200.

The previous prime is 12089761. The next prime is 12089797. The reversal of 12089775 is 57798021.

It is not a de Polignac number, because 12089775 - 2¹¹ = 12087727 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24582 + ... + 25068.

Almost surely, 2^12089775 is an apocalyptic number.

12089775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12089775 is a deficient number, since it is larger than the sum of its proper divisors (8000209).

12089775 is a wasteful number, since it uses less digits than its factorization.

12089775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 12089775 is about 3477.0353751436. The cubic root of 12089775 is about 229.5123568800.

The spelling of 12089775 in words is "twelve million, eighty-nine thousand, seven hundred seventy-five".